Which variable expression represents the word phrase?

the sum of 10 and the product of 7 and a number

10 + (y ÷ 7)

10 + 7y

10−7y

10y + 7

!! 10 ! a westbound jet leaves central airport traveling 635 miles per hour. at the same time, an eastbound plane departs at 325 miles per hour. in how many hours will the planes be 1900 miles apart?

X2 + y 2 = 36 x + y = 6 solve the system of equations.

Match each whole number with a rational, exponential expression 3 square root 27^2find the domain and range of the exponential function h(x)=125^x. explain your findings. as x decreases does h increase or decrease? explain. as x increases does h increase or decrease? explain.